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3 years ago

Can you plz help me I’m stupid and my parents don’t understand

Mathematics

1 answer:

alisha [4.7K]3 years ago

6 0

B=to total bottles of water filled
Function for Rachel would be
13R=B
Function of Alyssa would be
15A+5=B
If there is more to the question don’t hesitate to message me.

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Convert 16/5 to a decimal using long division PLEASE HELP TY!!<3

sergeinik [125]

3.2

Step-by-step explanation:

The Image attached below.

The given fraction is $\frac{16}{5}\$ .

Step 1: Write the numerator inside.and denominator outside.

Step 2: If we multiply a number 5 by 3 we get 15. Write 3 in the quotient place.

Step 3: Now subtract 15 from 16, we get 1

Step 4: Place a decimal point after 3 and give one zero after 1, we get 10.

Step 5: Now multiply 5 by 2, we get 10.

Step 6: Subtract 10 from 10, the remainder is 0.

Step 7: The decimal is 3.2.

3 0

4 years ago

Read 2 more answers

A manufacturer of widgets wants to test a new widget-producing machine to determine if it can make an average of 25 widgets per

klio [65]

Using the t-distribution, it is found that since the p-value is greater than 0.01, there is no evidence that the new machine should be rejected at the 0.01 significance level.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the average is not less than 25, that is:

$H_0: \mu \geq 25$

At the alternative hypothesis, it is tested if the average is less than 25, that is:

$H_1: \mu < 25$

<h3>What is the test statistic?</h3>

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

Considering the situation described, the values of the parameters are given as follows:

$\overline{x} = 24.97, \mu = 25, s = 2.16, n = 10$

Hence the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{24.97 - 25}{\frac{2.16}{\sqrt{10}}}$

t = -0.04

<h3>What is the p-value and the conclusion?</h3>

Using a t-distribution calculator, for a left-tailed test, as we are testing if the mean is less than a value, with 10 - 1 = 9 df and t = -0.04, the p-value is of 0.4844.

Since the p-value is greater than 0.01, there is no evidence that the new machine should be rejected at the 0.01 significance level.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

3 0

2 years ago

Which of the following have the correct solution? Check all

Neko [114]

Step-by-step explanation:

To do this, we will substitute the x values to their corresponding equations,

$2x + 5 \\ = 2(7) + 5 \\ = 14 + 5 \\ = 19$